F01K 3/185
Using waste heat from outside the plant
Official title: {using waste heat from outside the plant (F02G5/00 takes precedence)}
F01K3/185 (Using waste heat from outside the plant) appears on 136 US grants and 122 published applications in this corpus.
Search patents in F01K- Granted patents
- 136
- Published applications
- 122
- Assignees
- 70
- Inventors
- 182
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 5 | 0 |
| 1979 | 4 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 5 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 3 | 6 |
| 2004 | 4 | 1 |
| 2005 | 2 | 4 |
| 2006 | 2 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 3 |
| 2011 | 1 | 5 |
| 2012 | 3 | 3 |
| 2013 | 3 | 3 |
| 2014 | 3 | 6 |
| 2015 | 5 | 7 |
| 2016 | 3 | 6 |
| 2017 | 14 | 27 |
| 2018 | 13 | 16 |
| 2019 | 19 | 12 |
| 2020 | 4 | 2 |
| 2021 | 9 | 4 |
| 2022 | 6 | 5 |
| 2023 | 5 | 6 |
| 2024 | 4 | 2 |
| 2025 | 2 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Thermal sludge to energy transformer14 Jul 2026US 12,680,695 B2Gate 5 Energy Partners, Inc.
- Waste heat integration into pumped thermal energy storage17 Jun 2025US 12,331,664 B2Supercritical Storage Company, Inc.
- Exhaust flow modifier, duct intersection incorporating the same, and methods therefor10 Jun 2025US 12,325,828 B2Suncoke Technology and Development LLC
- Thermal energy storage power plant26 Nov 2024US 12,152,510 B2Kabushiki Kaisha Toshiba
- System and method for high efficiency power generation using a carbon dioxide circulating working fluid22 Oct 2024US 12,123,345 B28 Rivers Capital, LLC
- System and method for high efficiency power generation using a carbon dioxide circulating working fluid9 Jan 2025US 2025/0012214 A18 Rivers Capital, LLC
- Thermal sludge to energy transformer9 Jan 2025US 2025/0012439 A1Gate 5 Energy Partners, Inc.
- Waste heat integration into pumped thermal energy storage19 Sep 2024US 2024/0309781 A1Supercritical Storage Company, Inc.
- Thermal energy storage power plant18 Jul 2024US 2024/0240575 A1Kabushiki Kaisha Toshiba
- Pumped thermal storage cycles with turbomachine speed control30 Nov 2023US 2023/0383998 A1Malta Inc.
Most cited
By later US patents
- Thermal energy storage by means of reversible heat pumping utilizing industrial waste heat198US 4,110,987 AExxon Research & Engineering Co. · 1978
- System for treating and recovering energy from exhaust gases100US 4,126,000 A1978
- Heat engines with cascade cycles97US 8,869,531 B2Echogen Power Systems, LLC · 2014
- Heat engine and heat to electricity systems and methods92US 8,096,128 B2Echogen Power Systems, LLC · 2012
- Heat engine and heat to electricity systems and methods with working fluid mass management control87US 8,613,195 B2Echogen Power Systems, LLC · 2013